On this week's DecodeDC podcast, host Andrea Seabrook talks to three experts about a deceptively simple question: What responsibility does the U.S. have, if any, to respond to ISIS?

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The experts we spoke with -- Bruce Hoffman, the director of Georgetown University’s Center for Security Studies; Justin Logan, the head of Foreign Policy Studies at the libertarian think tank The Cato Institute; and Jim Wallis, a public theologian and activist -- disagree on what action the U.S. should take against ISIS. 
 
But they do not differ on these two facts: Americans are exhausted and war-weary. And they are desperate to return to a world where terrible threats don’t interrupt their lives with violent images.